Finishing textile fabrics



Pdtented Nov. I3, 1934 UNITED STATES PATENT OFFICE FINISHING TEXTILE FABRICS No Drawing. Application July 26, 1933, Serial No. 682,290

3 Claim.

This invention relates to methods of finishing textile fabrics, particularly cotton dress goods such as voiles, piqu voiles and organdies characterized by a gauze-like texture.

The object of my invention is to impart to fabrics of the kind referred to a finish which will render them resistant to creasing without attendant harshness or detraction from the desired amount of pliability; and, which, moreover, will remain substantially permanent notwithstanding frequent laundering of dresses and other articles of wearing apparel made from the oods.

One way in which the foregoing and other advantages may be readily realized in practice will be manifest from the detailed description which immediately follows:

In carrying out my new finishing method, I run cotton or rayon fabric from which the natural waxes and coloring have been previously removed in any one of the many ways well known in the art, through a sizing bath prepared by mixing 15 gals. of casein solution containing 1 lb. of dry casein and 2 oz. tri-sodium phosphate, with 5 gals. of latex solution containing 2% sulphur on the dry rubber, 2% zinc oxide on the dry rubber, and 2% of piperidine pentamethylene dithiocarbamate, which latter is relied upon to act as an accelerator. The application of this sizing may be accomplished in any convenient way. For example, I may employ a mangle in which the lower roller depresses the fabric into a bath of the sizing and in which the upper roller cooperates with said lower roller to subsequently remove the excess sizing.

I next pass the fabric through a suitable drying machine, and during the drying cause the fabric to be worked to prevent adhesion between its crossed threads at the regions of their overlap.

After drying of the fabric as just explained, I run it through a boiling washing solution preferably using another mangle like the one above referred to, for extracting the materials which were used in the first bath to hold the sizing materials in suspension. This solution I prepare by dissolving 1 lb. of 88% sodium oleate in 100 gals. of water.

As a final step I pass the fabric through a tentering drying machine, this time however without working it, since, as a consequence of the vulcanizing of the latex during the first drying, the sizing is fixed against the possibility of causing adhesion between the crossed fibers.

When dyeing or printing is resorted to for the purpose of ornamenting the fabric, this is preferably done after the removal of the natural oils and coloring matter in the preparatory step which has been described, 1. e. before treatment 80 with the sizing.

By the foregoing simple method I secure a finish whereby the fabric is rendered resistant to creasing without impartation thereto of harshness or detracting from the desired amount of pliability necessary to the purposes of dress goods; and while I have indicated that my invention is particularly advantageous in connection with voiles, pique voiles and organdies it can be employed with attainment of correspond- 7o ing advantages in connection with the finishing of other fabrics including those made of rayon and other vegetable fiber yarns.

Having thus described my invention, I claim:

1. The method of producing a permanent crease resistant finish in textile fabrics which comprises treating the fabrics, after the removal of the natural waxes and coloring materials therefrom, with a sizing containing latex and a vulcanizing agent in solution; drying and working the fabric while the latex is being set to prevent adhesion between its crossed threads at the regions of their overlap; washing the fabric with water soluble soap capable of extracting the materials of the sizing by which the 5 latex was held in suspension; and thereupon drying the fabric a second time. v

2. The method of producing a permanent crease resistant finish in textile fabrics which comprises treating the fabrics, after removal of the natural waxes and coloring materials therefrom, with a sizing prepared by mixing gals. of casein solution containing 1 lb. dry casein and 2 oz. of tri-sodium phosphate, with 5 gals. of 95 latex solution containing 2% sulphur and 2% piperidine pentamethylene dithiocarbamate; drying the fabric to set the latex and incidently working it to prevent adhesion between its crossed threads; washing the fabric with we.- 100 ter soluble soap capable of removing the ingredients of the sizing by which the latex was held in suspension; and thereupon drying-the fabric a second time. I

3. The method of producing a permanent 05 crease resistant finish in textile fabrics which comprises treating the fabrics, after removal of natural waxes and coloring materials therefrom, with a sizing prepared by mixing 15 gals. of casein solution containing 1 lb. dry casein ll;

solution prepared by dissolving 88% sodium oleate in 100 gals. or water to remove the ingredients of the sizing by which the latex was held in suspension; and thereupon drying the fabric a; second time.

JOHN '1". GIBBONS. 

